161092139570 has 32 divisors (see below), whose sum is σ = 315320588208. Its totient is φ = 59007356928.

The previous prime is 161092139569. The next prime is 161092139591. The reversal of 161092139570 is 75931290161.

161092139570 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 136293134041 + 24799005529 = 369179^2 + 157477^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12799127 + ... + 12811706.

Almost surely, 2^161092139570 is an apocalyptic number.

161092139570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

161092139570 is a deficient number, since it is larger than the sum of its proper divisors (154228448638).

161092139570 is a wasteful number, since it uses less digits than its factorization.

161092139570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25610894.

The product of its (nonzero) digits is 102060, while the sum is 44.

The spelling of 161092139570 in words is "one hundred sixty-one billion, ninety-two million, one hundred thirty-nine thousand, five hundred seventy".